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开始学习

问题		答案
oscilloscope 开始学习		a measuring device used to represent voltage on a screen
electronic circuit 开始学习		interconnected elements that conduct electricity
coaxial cables 开始学习		cable for transmitting the TV signal
transducer 开始学习		a magnetic element thanks to which the voltage changes
comprehend 开始学习		understand
cathode-ray 开始学习		electrode
phosphors 开始学习		chemical substance
to blink an eye 开始学习		give someone a sign with eye
sweep 开始学习		brush
wobbling up 开始学习		not keep balance
effectively 开始学习		skilfully
relatively bulky 开始学习		not meeting needs
convenient 开始学习		comfortable
displaying varying signals 开始学习		showing different signs
trace 开始学习		determine location

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